guid partition table freeware downloads

Gptgen

1.1 freeware download

... is a tool to non-destructively convert hard disks partitioned in the common, "MSDOS-style" MBR scheme (including extended partitions) to use a GUID partition table (GPT). ...

Memtest86 for Linux

11.0 B1000 freeware download

... was no disk support. Use of GPT. (GUID Partition Table) ECC RAM support (limited hardware support, ongoing development) ...